What is the area of regular polygon of radius 6cm, if its perimeter is 36cm?
Anonymous Quiz
21%
108 cm²
52%
54√3 cm²
20%
126 cm²
7%
116√3 cm²
❤7👍1
Let the ages of 5 children be 2, 3, 6, 9, 10. Then the mean age of the children is:
Anonymous Quiz
2%
2
14%
4
79%
6
5%
10
Which one of the following is Not properties of arithmetic mean?
Anonymous Quiz
18%
The sum of the deviations of individual observations from mean is zero.
35%
If constant k is added to each data value, the new mean is the same as the old mean.
32%
The mean of k times a population function is equal to k times the mean of the population function.
16%
The mean is affected by extreme values and the mean is always unique.
❤1
Which one of the following is NOT properties of median?
Anonymous Quiz
12%
It is a unique for a given data.
18%
It is not affected by extreme values.
55%
It is a value which occurs most frequently in a data set.
15%
It can be obtained even when some of the data values are not known.
Which one of the following measures of location can be found for both quantitative and qualitative data?
Anonymous Quiz
12%
The mean
17%
The median
32%
The range
39%
The mode
❤3
Consider the following data set:
1, 5, 4, 5, 6, 8, 4, 9, 7, 2, 3, 4, 6, 5, 1, 7. Then which one of the following is true about the given data set?
1, 5, 4, 5, 6, 8, 4, 9, 7, 2, 3, 4, 6, 5, 1, 7. Then which one of the following is true about the given data set?
Anonymous Quiz
8%
It is unimodal.
29%
It is bimodal.
62%
It is multimodal.
2%
It has no mode.
🤔6
Consider the following data set:
11, 9, 14, 3, 11, 4, 10, 21, 8, 15, 350. Then which of the following is NOT true about the given data set?
11, 9, 14, 3, 11, 4, 10, 21, 8, 15, 350. Then which of the following is NOT true about the given data set?
Anonymous Quiz
12%
The mode of the data is 11.
56%
The median of the data is 10.
22%
The mean of the data is 41.45.
11%
The median of the data is 11.
❤2
If the mean of a, b, c, d, e, f is k, then what is the mean of a + b, 2b, c + b, d + b, e + b, f + b?
Anonymous Quiz
9%
2k
54%
b + k
17%
bk
20%
2k + b
The mode of a certain data is 20. If each value in the data is increased by 2, then what will be the mode of the new data?
Anonymous Quiz
16%
20
37%
40
17%
18
30%
22
❤1
The median of x, 2x, x - 4 and 2x + 12 is 9, where x is a positive integer. Then what is the value of x?
Anonymous Quiz
7%
16
43%
18/3
31%
6
20%
22/3
Which of the following defines the range of the data?
Anonymous Quiz
11%
It is the sum of the highest and lowest value in the data.
11%
It is the product of the highest and lowest value in the data.
75%
It is the difference between the highest and lowest value in the data.
3%
It is the value which contains the highest frequency in the data.
What is the standard deviation of the given data: 2, 3, 6, 4, 2, 5, 6?
Anonymous Quiz
15%
11.3
29%
√11.3
29%
2.57
27%
√2.57
🤔2
An integer n, 1 ≤ n ≤ 144, is picked at random. What is the probability that n is the square of an integer?
Anonymous Quiz
48%
1/12
26%
1/44
16%
1
9%
192/13
❤6
Two fair dice are rolled once. What is the probability that the difference of the two numbers shown is 1?
Anonymous Quiz
13%
5/36
39%
5/18
33%
1/6
14%
5/6
❤3
In a class of boys and girls, the mean weight of 8 boys is 55 kg and the mean weight of a group of girls is 48 kg. The mean weight of all the children is 50.8 kg. Then how many girls are there?
Anonymous Quiz
9%
19
36%
23
48%
12
7%
10
❤2
Suppose a student writes the days of the week on identical pieces of paper. She mixes them in in a bowl and selects one at a time. What is the probability that the day she selects will have the letter r in it?
Anonymous Quiz
15%
2/7
34%
1/7
47%
3/7
4%
4/7
A pair of dice are rolled. What is the probability that the sum of the numbers on the upper faces is greater than 9 and even?
Anonymous Quiz
29%
1/9
30%
5/9
34%
2/9
7%
7/9
❤2
Which of the following is NOT true about enzymes?
Anonymous Quiz
6%
They are a biological catalysts.
14%
They are proteins made up of chains of amino acids linked together by peptide bonds.
17%
Enzymes are denatured by high heat and high salt concentrations.
63%
Enzymes affect the nature of products formed.
❤3
It is the process of breaking the intra and unter-molecular non-covalent bonds that distrot the shape and active site of the enzymes. Which enzyme propertie shows the above statement?
Anonymous Quiz
7%
Solubility
17%
The colloidal
60%
Denaturation
16%
Enzyme precipitation